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Dear teachers and classmates ,I am very glad to make a speech in English here ,my topic is about a trip to shanghai. A pleasant trip Last sunday, I went to shanghai with my father and my sister , It
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We use those in my field of bone marrow transplantation. 我们把这些干细胞用于骨髓移植领域。 Geron, just last year, started the first trial using human embryonic stem cells to treat spinal cord injuries. 杰龙去年开始第一次尝试用人类
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Now, there are a lot of folks, a lot of skeptics who often downplay the effectiveness of multilateral action 有很多质疑者 经常贬低多边行动的有效性 For them, working through international institutions like the U.N. or r